feat: add metrics backwards-compatibility CI framework#8204

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Amaan729 wants to merge 2 commits intojaegertracing:mainfrom

Amaan729:feat/metrics-backwards-compat

Commits on Mar 19, 2026

feat: add verify-metrics-snapshot composite action (#6278)
Amaan729
committed
chore: add testdata/metrics directory for metric snapshots (#6278)
Amaan729
committed